/*
  安心處引導系統
  視覺定調：現代數寄屋、侘寂材質、安靜但有權威感的室內設計診斷。
*/

:root {
    --color-washi: #F7F3EA;
    --color-paper: #FCFAF5;
    --color-ink: #2F302B;
    --color-sumi-soft: #6F7168;
    --color-hinoki: #C8B89A;
    --color-tsuchi: #9A735A;
    --color-aonibi: #5F746B;
    --color-line: #D8D0C2;
    --shadow-paper: 0 24px 70px rgba(47, 48, 43, 0.08);
    --font-serif: "Noto Serif TC", "Source Han Serif TC", "PMingLiU", serif;
    --font-sans: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    --font-latin: Georgia, "Times New Roman", serif;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--color-washi);
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--color-ink);
    font-family: var(--font-sans);
    line-height: 1.7;
    background:
        linear-gradient(90deg, rgba(216, 208, 194, 0.32) 1px, transparent 1px) 0 0 / 96px 96px,
        linear-gradient(180deg, rgba(216, 208, 194, 0.22) 1px, transparent 1px) 0 0 / 96px 96px,
        radial-gradient(circle at 50% 0%, rgba(200, 184, 154, 0.28), transparent 36rem),
        var(--color-washi);
}

body::before {
    position: fixed;
    inset: 0;
    pointer-events: none;
    content: "";
    opacity: 0.34;
    background-image:
        linear-gradient(115deg, rgba(47, 48, 43, 0.025) 0 1px, transparent 1px 7px),
        linear-gradient(20deg, rgba(154, 115, 90, 0.02) 0 1px, transparent 1px 6px);
}

button {
    font: inherit;
}

.app-shell {
    width: min(100%, 1040px);
    min-height: 100vh;
    margin: 0 auto;
    padding: clamp(28px, 6vw, 72px);
}

.screen {
    position: relative;
    display: flex;
    min-height: calc(100vh - clamp(56px, 12vw, 144px));
    flex-direction: column;
    justify-content: center;
}

.hidden {
    display: none !important;
}

.brand-mark,
.kicker,
.question-meta,
.diagnosis-list span {
    color: var(--color-aonibi);
    font-family: var(--font-latin);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.brand-mark {
    position: absolute;
    top: 0;
    left: 0;
}

.entry-line {
    position: absolute;
    top: 12%;
    right: 8%;
    width: min(28vw, 260px);
    height: 62%;
    border-right: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
}

.entry-line::before,
.entry-line::after {
    position: absolute;
    content: "";
    background: var(--color-hinoki);
}

.entry-line::before {
    top: 18%;
    right: -38px;
    width: 76px;
    height: 1px;
}

.entry-line::after {
    right: 18%;
    bottom: -28px;
    width: 1px;
    height: 56px;
}

.welcome-copy {
    width: min(720px, 100%);
    padding-top: 8vh;
}

.kicker {
    margin: 0 0 18px;
}

h1,
h2 {
    margin: 0;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.28;
}

h1 {
    max-width: 760px;
    font-size: 5.2rem;
}

h2 {
    font-size: 3.8rem;
}

.subtitle,
.loading-text,
.result-statement {
    max-width: 520px;
    margin: 26px 0 0;
    color: var(--color-sumi-soft);
    font-size: 1.12rem;
}

.btn-primary {
    position: relative;
    width: fit-content;
    min-width: 214px;
    margin-top: 48px;
    padding: 15px 26px;
    border: 1px solid var(--color-aonibi);
    border-radius: 0;
    background: rgba(252, 250, 245, 0.62);
    color: var(--color-ink);
    cursor: pointer;
    overflow: hidden;
    transition: border-color 240ms ease, color 240ms ease, transform 240ms ease;
}

.btn-primary::before {
    position: absolute;
    inset: 0;
    content: "";
    background: var(--color-aonibi);
    transform: translateX(-101%);
    transition: transform 360ms ease;
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-primary:hover,
.btn-primary:focus-visible {
    color: var(--color-paper);
    transform: translateY(-2px);
}

.btn-primary:hover::before,
.btn-primary:focus-visible::before {
    transform: translateX(0);
}

.question-screen {
    gap: 28px;
}

.question-meta {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    color: var(--color-sumi-soft);
}

.progress-track {
    width: 100%;
    height: 1px;
    background: var(--color-line);
}

.progress-bar {
    width: 0%;
    height: 1px;
    background: var(--color-aonibi);
    transition: width 560ms ease;
}

.question-panel {
    max-width: 820px;
}

.question-panel h2 {
    margin-top: 34px;
    font-size: 3.2rem;
}

.question-note {
    max-width: 620px;
    margin: 20px 0 34px;
    color: var(--color-sumi-soft);
}

.option-list {
    display: grid;
    gap: 14px;
    width: min(720px, 100%);
}

.option-button {
    display: grid;
    grid-template-columns: 3px 1fr;
    gap: 18px;
    align-items: center;
    width: 100%;
    min-height: 72px;
    padding: 18px 22px 18px 0;
    border: 0;
    border-bottom: 1px solid var(--color-line);
    background: transparent;
    color: var(--color-ink);
    text-align: left;
    cursor: pointer;
}

.option-button::before {
    width: 3px;
    height: 100%;
    min-height: 36px;
    content: "";
    background: var(--color-line);
    transition: background 220ms ease, transform 220ms ease;
}

.option-button:hover,
.option-button:focus-visible {
    background: rgba(252, 250, 245, 0.56);
    outline: 0;
}

.option-button:hover::before,
.option-button:focus-visible::before {
    background: var(--color-aonibi);
    transform: scaleY(1.16);
}

.option-button.is-selected::before {
    background: var(--color-tsuchi);
}

.loading-screen {
    align-items: center;
    text-align: center;
}

.reading-grid {
    position: relative;
    width: min(62vw, 340px);
    aspect-ratio: 1;
    margin-bottom: 34px;
    border: 1px solid var(--color-line);
    animation: breathe 3200ms ease-in-out infinite;
}

.reading-grid::before,
.reading-grid::after {
    position: absolute;
    inset: 18%;
    content: "";
    border: 1px solid rgba(95, 116, 107, 0.48);
    transform: rotate(45deg);
}

.reading-grid::after {
    inset: 34%;
    border-color: rgba(154, 115, 90, 0.42);
    animation: inkRise 2800ms ease-in-out infinite;
}

.reading-grid span {
    position: absolute;
    background: var(--color-line);
}

.reading-grid span:nth-child(1),
.reading-grid span:nth-child(2) {
    top: 50%;
    left: 10%;
    width: 80%;
    height: 1px;
}

.reading-grid span:nth-child(2) {
    transform: rotate(90deg);
}

.reading-grid span:nth-child(3),
.reading-grid span:nth-child(4) {
    top: 14%;
    left: 50%;
    width: 1px;
    height: 72%;
    transform: rotate(45deg);
}

.reading-grid span:nth-child(4) {
    transform: rotate(-45deg);
}

.loading-screen .loading-text {
    margin-inline: auto;
}

.result-screen {
    justify-content: flex-start;
    padding-top: 7vh;
}

.result-statement {
    max-width: 760px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 2.15rem;
}

.diagnosis-layout {
    display: grid;
    grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
    gap: clamp(28px, 6vw, 72px);
    align-items: center;
    margin-top: 54px;
}

.radar-card {
    display: grid;
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid var(--color-line);
    background: rgba(252, 250, 245, 0.48);
    box-shadow: var(--shadow-paper);
}

.radar-web {
    position: relative;
    width: 68%;
    aspect-ratio: 1;
    border: 1px solid rgba(95, 116, 107, 0.54);
    transform: rotate(45deg);
}

.radar-web::before,
.radar-web::after {
    position: absolute;
    content: "";
}

.radar-web::before {
    inset: 20%;
    border: 1px solid rgba(154, 115, 90, 0.44);
}

.radar-web::after {
    inset: 31% 16% 18% 28%;
    background: rgba(95, 116, 107, 0.20);
    clip-path: polygon(50% 0, 100% 34%, 82% 100%, 18% 88%, 0 28%);
}

.radar-web span {
    position: absolute;
    color: var(--color-sumi-soft);
    font-family: var(--font-serif);
    font-size: 0.86rem;
    transform: rotate(-45deg);
}

.radar-web span:nth-child(1) {
    top: -34px;
    left: 46%;
}

.radar-web span:nth-child(2) {
    top: 46%;
    right: -34px;
}

.radar-web span:nth-child(3) {
    bottom: -34px;
    left: 46%;
}

.radar-web span:nth-child(4) {
    top: 46%;
    left: -34px;
}

.diagnosis-list {
    display: grid;
    gap: 22px;
}

.diagnosis-list article {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-line);
}

.diagnosis-list p {
    margin: 8px 0 0;
    color: var(--color-sumi-soft);
}

.result-cta {
    margin-top: 44px;
}

.fade-out {
    animation: fadeOut 520ms ease forwards;
}

.fade-in {
    animation: fadeIn 760ms ease forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes breathe {
    0%,
    100% {
        opacity: 0.72;
        transform: scale(0.985);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes inkRise {
    0%,
    100% {
        opacity: 0.36;
        transform: rotate(45deg) scale(0.9);
    }
    50% {
        opacity: 0.74;
        transform: rotate(45deg) scale(1.08);
    }
}

@media (max-width: 760px) {
    .app-shell {
        padding: 24px;
    }

    .screen {
        min-height: calc(100vh - 48px);
    }

    .brand-mark {
        position: static;
        margin-bottom: 56px;
    }

    .entry-line {
        top: 90px;
        right: 24px;
        width: 120px;
        height: 220px;
        opacity: 0.72;
    }

    .welcome-copy {
        padding-top: 0;
    }

    h1 {
        font-size: 3.2rem;
    }

    h2,
    .question-panel h2 {
        font-size: 2.35rem;
    }

    .subtitle,
    .loading-text {
        font-size: 1rem;
    }

    .result-statement {
        font-size: 1.48rem;
    }

    .question-meta {
        flex-direction: column;
        gap: 8px;
    }

    .option-button {
        min-height: 78px;
        padding-right: 8px;
    }

    .diagnosis-layout {
        grid-template-columns: 1fr;
    }

    .radar-card {
        width: min(100%, 330px);
    }
}